恢复

利用sql_therad独立完成。

1.创建空实例。

2.导入备份，例mysqldump的备份

3.设置gtid_purged，通过备份文件查找gtid.

-- GTID state at the beginning of the backup
--

SET @@GLOBAL.GTID_PURGED='cb181bfa-b71c-11e8-b976-c03fd53051da:1-3';

--
-- Position to start replication or point-in-time recovery from
--

-- CHANGE MASTER TO MASTER_LOG_FILE='mysql-bin.000010', MASTER_LOG_POS=328;

------------------------------------------------------------------------------------

>reset master

>set global  GTID_PURGED='cb181bfa-b71c-11e8-b976-c03fd53051da:1-3';

>show   global variables  like '%relay_log_basename%'

4.将主库（故障库）binlog拷贝到并重命名为 xxxx-relay-bin 并重构xxxx-relay-bin.index

5.change master to relay_log_file='xxxx-relay-bin.000010',relay_log_pos=328,masterhost='host01';

6.show slave status G  查看Retrieved_Gtid_Set 

7.通过解析binlog日志查找到故障操作gtid

mysqlbinlog -v --base64-output=decode-rows    mysql-bin.000010

8.如果需要只恢复一张表设置过滤。

change replication filter replicate_do_table=(db1.a);

9.启动sql_thread到故障gtid

start slave sql_thread until sql_before_gtids='cb181bfa-b71c-11e8-b976-c03fd53051da:5';

10.show slave status 检查

11.检查表数据恢复。